In fact, much of the JerryRigEverything YouTube channel is counter evidence for this claim, as Zack shows taking two electric bikes and welding them together for a seriously good and relatively inexpensive first pass at an “off road wheelchair”, and then ups the ante with his custom-designed “notawheelchair” a.k.a. “Rig”, and plenty of other videos with his lovely now-wife Cambry.
Now, if someone is dependent on staying in their electric wheelchair and they need a van with a lift or a ramp, then the current fleet of EVs aren’t very suitable for that. But I’m sure that situation will change. But claiming that there is absolutely no future in electric vehicles for disabled people is quite … disingenuous … at best.